Circuit configuration for protecting a power MOSFET

Details Circuit configuration for protecting a power MOSFET Circuit configuration for protecting a power MOSFET

1997-07-18

2000-03-28

Wells, Kenneth B.

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Accelerating switching

327309, 327326, H03K 1704

Patent

active

060437014

ABSTRACT:
A circuit configuration for protecting a MOSFET against overvoltages, includes at least one diode connected in the blocking direction between a drain terminal and a gate terminal of the MOSFET to be protected. A series connection of a load path of a further MOSFET and a further Zener diode connected in the blocking direction, is connected between the at least one Zener diode and the gate terminal of the MOSFET to be protected. A cathode of the further Zener diode is connected to a gate terminal of the further MOSFET.

REFERENCES:
patent: 4574266 (1986-03-01), Valentine
patent: 4801824 (1989-01-01), Fellinger et al.
patent: 4853563 (1989-08-01), Hill et al.
patent: 5162966 (1992-11-01), Fujihira
patent: 5767550 (1998-06-01), Calafut et al.
"Smart SIPMOS TEMPFET, PROFET, Dimmer" Data Book 1993-94, pp. 2-7.

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